package com.example.a55555project;

import androidx.appcompat.app.AppCompatActivity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    public static int MODE = MODE_PRIVATE;
    public static final String PREFERENCE_NAME = "SaveSetting";
    Button btnLogin;
    EditText etAccount, etPassword;
    SharedPreferences sharedPreferences;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btnLogin = findViewById(R.id.btn_login);
        etAccount = findViewById(R.id.account_input);
        etPassword = findViewById(R.id.password_input);

        btnLogin.setOnClickListener(this);

        sharedPreferences = getSharedPreferences(PREFERENCE_NAME, MODE);
        String savedAccount = sharedPreferences.getString("account", "");
        String savedPassword = sharedPreferences.getString("password", "");

        etAccount.setText(savedAccount);
        etPassword.setText(savedPassword);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_login:
                String account = etAccount.getText().toString();
                String password = etPassword.getText().toString();

                SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putString("account", account);
                editor.putString("password", password);
                editor.apply();

                Toast.makeText(this, "账户和密码已保存", Toast.LENGTH_SHORT).show();
                break;
        }
    }
}